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http://dx.doi.org/10.13161/kibim.2018.8.4.034

Numerical Model Updating for Bridge Maintenance Using Digital-Twin Model  

Yoon, Sang-Gwi (인하대학교 토목공학과)
Shin, Soobong (인하대학교 사회인프라공학과)
Shin, Do Hyoung (인하대학교 사회인프라공학과)
Publication Information
Journal of KIBIM / v.8, no.4, 2018 , pp. 34-40 More about this Journal
Abstract
As the number of aged bridges increases, the development of efficient bridge maintenance techniques is becoming more important. Particularly, there have been many studies on digital-twin models of bridges for maintenance and SHM (Structure Health Monitering). However, in order to use the digital-twin model for maintenance of the bridge, the model updating process that matches the structural response between the real bridge and the digital-twin bridge model must be done. This study presents a model updating method that adjusts bridge's stiffness and boundary condition with genetic algorithm (GA) using static displacements and verified proposed updating method through field test on PSC girder bridge. This study also proposes a conceptual idea to construct an efficient bridge maintenance system by applying the updated numerical analysis model to the digital-twin model.
Keywords
Digital-Twin; Bridge maintenance; PSC girder bridge; Genetic algorithm; Model updating;
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